Hot plate



Aug. 15, 1939 K. I5RADE 2,169,884

HOT PLATE Filed Feb 28, 1938 lnventor 2 Karl prade,

His Attornel 20 element is prev and contact be Patented Aug. 15, 1939 Karl Prado,

Electric Com Application F In cover which shuts on casing. In orde ture, the edge edge or flange oi the Supports resting on such supports the heating from bending downwards /the individual turns 'is asing I has an cover I in such 4 of the cover overlaps e casing p ing. The the sheathed heating opening 2 which is a manner that the the turned-up edge shut 01! by a penetrationofheatan oi the plate is btained UNITED STATES PATENT OFFICE HOT PLATE Germany, lssignor to a corporation oi.

2s, 1938 semi No. 19 3189 rmany March 18, 19:7

3 Claims. (Cl. 219-37) 0! the bolt l2, moreover, extends through the floor I5 01' the casing I. By means 01'- the nut l6 screwed on the bolt I! the floor is firmly pressed against the casing I.

The sheathed heating element 8 preferably 5 will be of the type described and claimed in the powdered magnesium oxide.

While I have shown a particular embodiment it of my invention, it will be understood, of course, that I do not wish to be limited thereto since many modifications may be made, and I, therefore, contemplate by the appended claims to cover any such modifications as fall within the true spirit and scope of my invention.

What I claim as new and desire to secure by I Letters Patent 01 the United States is: v v

1. An electric hotplate comprising a sheathed heating element having down-turned terminal ends, a supporting casing having a top wall that holds said heating element, said top wall having an opening about which there is an upright flange, a cover on said flange closing said opening at the top, the cover having a down-turned flange that cooperates with said upright flange in overlapping relation, the down-turned terminal ends of said heating element directed down through said cover and moisture-proof joints between said terminal ends and said cover, a

trough-shaped radiation plate within said casing closing said opening at the bottom, and

lapping said upright flange, the down-turned terminal ends of said heating element directed through said cover and moistureproof joints between said terminal ends and said cover, a bolt tending down through said casing, a radiation Plate within said casing threaded on said bolt flange, a cover on said flange closing said opening, the cover having a down-turned flange overlapping said upright flange, the down-turned terminal ends of said heatingeiement being directed through said cover and having moisture-proof joints with said cover, a trough-shaped radiation plate below said opening at the bottom, and means detachabiy securing said radiation plate in its closing position.

KARL PRADE. 

